107
The following is the C code implements described algorithm:
unsigned char Calibration_HighBand_RBB (unsigned char ch)
{
unsigned char result = 0;
Save_config_RBB (); //save current configuration
MIMO_Ctrl (ch);
Modify_SPI_Reg_bits (0x040A, 13, 12, 1); // AGC Mode = 1 (RSSI mode)
Set_cal_path_RBB (8); //Set control signals to path 8 (RX HighBand)
if (Algorithm_B_RBB (&LowFreqAmp) != 1) goto RESTORE; // Calibrate and Record the low frequency output amplitude (Algorithm B)
Algorithm_F_RBB (RBB_37_0MHZ);// CalibrateByCap the output cuttoff frequency at 18,5 MHz MHz and store
Algorithm_F_RBB (RBB_66_0MHZ);// CalibrateByCap the output cuttoff frequency at 33 MHz MHz and store
Algorithm_F_RBB (RBB_108_0MHZ);// CalibrateByCap the output cuttoff frequency at 54 MHz MHz and store
RESTORE:
Restore_config_RBB ();
//restore configuration
return result;
}
A3.4
Nested algorithms
A3.4.1
Algorithm A
Multiply the ratio of the on-chip resistor to the off-chip resistor by the default control value
(R_CTL_LPF_RBB) of the respective resistor.
Algorithm_A_RBB
Input Parameters: none
Return Parameters: none
R_CTL_LPF_RBB := 16 * ratio
R_CTL_LPF_RBB_(1, 2)[4:0] (0x0116[15:11]) :=
R_CTL_LPF_RBB
Perform Resistor_ calibration procedure and get ratio
END
Figure 35 RBB algorithm A
C code for algorithm A:
void Algorithm_A_RBB ()
{
unsigned char R_CTL_LPF_RBB;
float ratio;
Resistor_calibration (&ratio);
R_CTL_LPF_RBB = (unsigned char)(16 * ratio); // Default control value multiply by ratio
Modify_SPI_Reg_bits (0x0116, 15, 11, R_CTL_LPF_RBB);
RBB_RBANK[MIMO_ch] = R_CTL_LPF_RBB; // Store RBANK Values (R_CTL_LPF_RBB)
}
A3.4.2
Algorithm B
Algorithm steps:
Содержание LMS7002M Series
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